package com.example.tests;

import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;

import java.util.Random;

import org.testng.annotations.Test;

import com.example.utils.SortedListOf;

public class ContactModificationTests extends TestBase {
	@Test (dataProvider = "randomValidContactsGenerator")
	public void modifySomeContact(ContactData contact) {
		// save old state
		SortedListOf<ContactData> oldContactList = app.getContactHelper().getContacts();
		
		Random rnd = new Random();
		int index = rnd.nextInt(oldContactList.size()-1);
		
		// actions
		app.getContactHelper().modifyContact(index, contact);
				
		// save new state
		SortedListOf<ContactData> newContactList = app.getContactHelper().getContacts();

		// compare states
		assertThat(newContactList, equalTo(oldContactList.without(index).withAdded(contact)));
	}

}